@font-face{font-family:'OS';font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/os-500-vi.woff2) format('woff2');unicode-range:U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB}@font-face{font-family:'OS';font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/os-500-la.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}@font-face{font-family:'OS';font-style:normal;font-weight:700;font-display:swap;src:url(../fonts/os-700-vi.woff2) format('woff2');unicode-range:U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB}@font-face{font-family:'OS';font-style:normal;font-weight:700;font-display:swap;src:url(../fonts/os-700-la.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}@font-face{font-family:'SS';font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/ss-400-vi.woff2) format('woff2');unicode-range:U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB}@font-face{font-family:'SS';font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/ss-400-la.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}@font-face{font-family:'SS';font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/ss-600-vi.woff2) format('woff2');unicode-range:U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB}@font-face{font-family:'SS';font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/ss-600-la.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}@font-face{font-family:'SS';font-style:normal;font-weight:700;font-display:swap;src:url(../fonts/ss-700-vi.woff2) format('woff2');unicode-range:U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB}@font-face{font-family:'SS';font-style:normal;font-weight:700;font-display:swap;src:url(../fonts/ss-700-la.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
:root{--bg:#fbf7f2;--paper:#fff;--ink:#1f1a17;--mute:#5d534c;--line:#eadfd3;--red:#b91c1c;--red-d:#8f1515;--gold:#d4a017;--gold-l:#fdf3d6;--max:1100px;--g:20px;--head:'OS',system-ui,sans-serif;--ff:'SS',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:70px;overflow-x:clip}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.65 var(--ff);overflow-x:clip}
a{color:var(--red-d);text-underline-offset:3px}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:4px}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3{font-family:var(--head);font-weight:700;line-height:1.15;margin:0 0 .5em;letter-spacing:.005em}
h2{font-size:clamp(26px,3.4vw,34px)}
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;z-index:99;background:#fff;padding:8px 14px}.skip:focus{left:8px}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 var(--g)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;background:var(--red);color:#fff;font-weight:700;border-radius:8px;padding:0 20px;min-height:48px;text-decoration:none}
.btn:hover{background:var(--red-d);color:#fff}
.btn--line{background:#fff;color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--line)}
.btn--line:hover{background:var(--gold-l);color:var(--ink)}
.btn--sm{min-height:40px;padding:0 14px;font-size:15px}
.hd{position:sticky;top:0;z-index:50;background:var(--red);color:#fff}
.hd__in{display:flex;align-items:center;gap:18px;min-height:58px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff;font:700 19px var(--head);letter-spacing:.02em}
.brand__mk{font:700 13px var(--head);background:var(--gold);color:var(--red-d);border-radius:6px;padding:4px 7px}
.hd__nav{margin-left:auto}
.hd__nav ul{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.hd__nav a{display:block;padding:8px 12px;border-radius:6px;text-decoration:none;color:#fde9e9;font-weight:600;font-size:15px}
.hd__nav a:hover{background:var(--red-d);color:#fff}
.hd__btn{display:none;width:44px;height:44px;border:1px solid rgba(255,255,255,.4);border-radius:8px;background:none;position:relative}
.hd__btn span:first-child,.hd__btn span:first-child::before,.hd__btn span:first-child::after{position:absolute;left:12px;right:12px;height:2px;background:#fff;content:''}
.hd__btn span:first-child{top:21px}.hd__btn span:first-child::before{top:-6px;left:0;right:0}.hd__btn span:first-child::after{top:6px;left:0;right:0}
.top{padding:34px 0 18px;background:linear-gradient(180deg,#fff,var(--bg))}
.top__grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);gap:26px;align-items:center}
.top__h{font-size:clamp(32px,4.8vw,52px);text-transform:uppercase}
.top__h span{display:block;color:var(--red)}
.top__p{color:var(--mute);margin:0;max-width:640px}
.today{background:#fff;border:2px dashed var(--red);border-radius:14px;padding:20px;text-align:center;position:relative}
.today::before,.today::after{content:'';position:absolute;top:50%;width:18px;height:18px;margin-top:-9px;border-radius:50%;background:var(--bg);border:2px dashed var(--red)}
.today::before{left:-11px;clip-path:inset(0 0 0 50%)}.today::after{right:-11px;clip-path:inset(0 50% 0 0)}
.today__lbl{margin:0;font-size:14px;color:var(--mute);font-weight:600}
.today__prov{margin:4px 0;font:700 34px var(--head);color:var(--red)}
.today__time{margin:0}
.today__time b{font-family:var(--head);font-size:20px}
.sec{padding-top:40px;padding-bottom:10px}
.sec__sub{color:var(--mute);margin:-4px 0 16px;max-width:760px}
.sec__note{font-size:14px;color:var(--mute)}
.tool{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:20px;align-items:start}
.tool__board,.tool__check{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px}
.tool__check{position:sticky;top:74px}
.tool__paste label{display:block;font-size:15px;margin-bottom:6px}
.tool__paste textarea{width:100%;border:1.5px solid var(--line);border-radius:8px;padding:10px;resize:vertical}
.tool__acts{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 16px}
.ticket{width:100%;border-collapse:collapse;border:2px solid var(--red)}
.ticket th{width:110px;text-align:left;vertical-align:middle;background:var(--gold-l);border-bottom:1px solid #f1d58a;padding:8px 10px}
.ticket th b{display:block;font:700 18px var(--head);color:var(--red)}
.ticket th small{font-size:12px;color:var(--mute)}
.ticket td{border-bottom:1px solid var(--line);padding:6px}
.ticket tr[data-prize="ĐB"] td{background:#fff5f5}
.cells{display:flex;flex-wrap:wrap;gap:6px}
.cells input{width:calc(5ch + 26px);text-align:center;border:1.5px solid var(--line);border-radius:6px;padding:8px 4px;font:700 18px var(--head);letter-spacing:.08em;min-height:44px}
.cells input[maxlength="4"]{width:calc(4ch + 26px)}.cells input[maxlength="3"]{width:calc(3ch + 26px)}.cells input[maxlength="2"]{width:calc(2ch + 26px)}
.cells input:focus{outline:none;border-color:var(--red)}
.tool__fill{font-size:14px;color:var(--mute);margin:10px 0 0}
.tool__lbl{display:block;font-weight:700;margin-bottom:6px}
.tool__ve{width:100%;border:2px solid var(--ink);border-radius:8px;padding:10px 12px;font:700 22px var(--head);letter-spacing:.06em}
.tool__hint{font-size:14px;color:var(--mute);margin:6px 0 10px}
.tool__check .btn{width:100%}
.res{display:grid;gap:8px;margin-top:14px}
.res__msg{margin:0;font-size:15px;color:var(--mute)}
.res__i{display:flex;gap:12px;align-items:flex-start;border-radius:10px;padding:10px 12px;font-size:15px}
.res__i b{font:700 20px var(--head);letter-spacing:.05em}
.res__i.is-win{background:#ecfdf3;border:1px solid #86efac}
.res__i.is-miss{background:#f7f3ee;border:1px solid var(--line)}
.tool__h3{font-size:18px;margin:20px 0 8px}
.heat{display:grid;grid-template-columns:repeat(10,1fr);gap:3px}
.heat span{position:relative;display:grid;place-items:center;font:500 13px var(--head);border-radius:4px;min-height:30px;background:#f5efe8;color:#9b8f86}
.heat .h1{background:#fde68a;color:var(--ink)}.heat .h2{background:#f59e0b;color:#fff}.heat .h3{background:var(--red);color:#fff}
.heat sup{position:absolute;top:1px;right:3px;font-size:9px}
.week{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:8px}
.week__d{display:flex;flex-direction:column;gap:2px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px;text-align:center}
.week__d span{font-size:13px;color:var(--mute);font-weight:600}
.week__d b{font:700 18px var(--head)}
.week__d small{font-size:12px;color:var(--mute)}
.week__d.is-today{background:var(--red);border-color:var(--red);color:#fff}
.week__d.is-today span,.week__d.is-today small{color:#fde9e9}
.cs-scroll{overflow-x:auto}
.struct{width:100%;border-collapse:collapse;background:#fff;min-width:480px}
.struct th,.struct td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.struct thead th{background:var(--red);color:#fff;font-family:var(--head);font-weight:500;letter-spacing:.03em}
.faq{display:grid;gap:8px;margin-bottom:24px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:10px;padding:2px 16px}
.faq summary{cursor:pointer;font-weight:700;padding:12px 0;min-height:44px}
.faq p{margin:0 0 14px;color:var(--mute)}
.fb{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;display:flex;flex-wrap:wrap;gap:14px 20px;align-items:center;justify-content:space-between}
.fb__head{display:flex;gap:12px;align-items:center}
.fb__ic{display:grid;place-items:center;width:44px;height:44px;border-radius:10px;background:var(--gold-l);color:var(--red);flex:none}
.fb__t{font-size:20px;margin:0}
.fb__s{margin:2px 0 0;font-size:14px;color:var(--mute)}
.fb__btns{display:flex;gap:8px}
.fb__b{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:#fff;border-radius:8px;padding:0 14px;font-weight:700;min-height:44px}
.fb__b--up[aria-pressed=true]{border-color:#16a34a;color:#15803d}
.fb__b--down[aria-pressed=true]{border-color:var(--red);color:var(--red)}
.fb__form,.fb__thx{flex-basis:100%;margin:0}
.fb__form{display:grid;gap:8px}
.fb__form textarea{border:1px solid var(--line);border-radius:8px;padding:10px;width:100%}
.fb__thx{color:#15803d;font-weight:700}
.pg{max-width:820px;padding-top:40px}
.pg__t{font-size:clamp(30px,4vw,44px)}
.prose{overflow-wrap:anywhere}
.list{list-style:none;padding:0}.list li{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:10px 0}
.pg--404{text-align:center}.code404{font:700 90px/1 var(--head);color:var(--red);margin:0}
.ft{margin-top:50px;background:#2a1414;color:#f1dede;padding:30px 0}
.ft p{margin:0 0 10px;font-size:14px;max-width:820px}
.ft__warn{display:flex;gap:10px;align-items:center;font-size:15px!important}
.ft__warn b{background:var(--gold);color:var(--red-d);border-radius:6px;padding:2px 8px;font-family:var(--head)}
.ft__copy{opacity:.7}
@media (max-width:900px){
 .hd__btn{display:block;margin-left:auto}
 .hd__nav{position:absolute;left:0;right:0;top:58px;background:var(--red);display:none;padding:6px var(--g) 12px}
 .hd__nav.is-open{display:block}.hd__nav ul{flex-direction:column}.hd__nav a{padding:12px 4px;font-size:17px}
 .top__grid,.tool{grid-template-columns:minmax(0,1fr)}
 .tool__check{position:static}
 .week{grid-template-columns:repeat(4,minmax(0,1fr))}
}
@media (max-width:640px){
 :root{--g:14px}
 .ticket th{width:74px;padding:6px}
 .cells input{font-size:16px;padding:6px 2px}
 .week{grid-template-columns:repeat(2,minmax(0,1fr))}
 .heat span{font-size:11px;min-height:26px}
}